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Taiwan Semiconductor Corporation RS2GFS
- Part No.:
- RS2GFS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
RS2GFS.pdf
- Description:
- DIODE GEN PURP 400V 2A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:6,600
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Product details
Overview
RS2GFS from Taiwan Semiconductor is a 2 A, 400 V fast recovery surface-mount rectifier in SOD-128 package, featuring 150 ns reverse recovery time, 1.01 V forward voltage at 2 A/25°C, and 175°C maximum junction temperature. It serves as a primary output rectifier in high-frequency DC-DC converters requiring low conduction loss and fast switching.
For engineers reviewing the RS2GFS datasheet, RS2GFS pinout, RS2GFS application, or RS2GFS equivalent, key selection criteria include repetitive peak reverse voltage (400 V), thermal resistance (16 °C/W junction-to-lead), reverse recovery time (≤150 ns), forward voltage consistency across temperature, and SOD-128 mechanical compatibility with high-density PCB layouts.
Technical Context
The RS2GFS employs a glass-passivated silicon PN junction optimized for fast recovery in switching power supplies. Its 150 ns trr and low 11 pF junction capacitance enable efficient operation at frequencies up to several hundred kHz without excessive switching loss or ringing.
Thermal performance is defined by RθJL = 16 °C/W and RθJA = 73 °C/W on a 5 mm × 5 mm copper pad, supporting continuous 2 A operation at ambient temperatures up to 105°C when properly mounted. The device uses matte tin-plated leads compliant with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Withstands repetitive reverse voltage up to 400 V without breakdown in flyback or forward converter secondary-side applications. |
| IF | 2 A - Continuous average forward current rating defines maximum steady-state output capability in DC-DC rectification stages. |
| trr | ≤150 ns - Fast reverse recovery minimizes switching losses and EMI generation during hard-commutation in SMPS topologies. |
| VF @ 2A, 25°C | 1.01 V - Low forward drop reduces conduction loss and improves system efficiency at nominal load conditions. |
| RθJL | 16 °C/W - Enables direct thermal path to PCB copper, supporting reliable 2 A operation without external heatsinking on standard FR-4. |
| Junction Temp | –55°C to +175°C - Wide operating range supports industrial and automotive under-hood environments with transient thermal stress. |
Pinout & Package
Package: SOD-128 - Low-profile, surface-mount plastic package (4.40 × 2.70 × 1.20 mm) with cathode band marking and matte tin-plated leads per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction | Connected to transformer secondary or switch node; must handle 50 A surge (8.3 ms) during startup or fault. |
| Cathode | Output terminal for forward conduction | Delivers rectified DC to output filter; polarity marked by visible band; ties to ground-referenced output rail. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term reliability and stable leakage current (<1 µA at 25°C) under humidity and bias stress. |
| Low profile SOD-128 | Enables <1.2 mm board height in space-constrained power modules and portable electronics power stages. |
| J-STD-020 Level 1 MSL | Allows unlimited floor life and standard reflow without baking-reducing manufacturing overhead and moisture-related defects. |
| RoHS & halogen-free | Meets IPC-1752A environmental compliance requirements for industrial and consumer end-equipment shipments. |
Applications
| AC-DC Adapter Secondary Rectification | Isolated DC-DC Converter Output Stage |
|---|---|
Use Scenario: 12 V/2 A isolated flyback adapter powering IoT gateways with universal AC input. IC Role / Device Role / Timing Role: Primary unidirectional power transfer element converting transformer AC output to regulated DC. Use Value: 150 ns trr and 1.01 V VF reduce switching loss and improve full-load efficiency by ≥0.8% versus slower 1N5822-class diodes. | Use Scenario: 48 V to 5 V isolated half-bridge DC-DC module in telecom shelf power distribution. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in secondary-side synchronous topology (driven by controller). Use Value: 11 pF CJ minimizes capacitive coupling noise into gate drive signals, improving cross-conduction immunity. |
| Automotive Body Control Module Power Supply | Industrial PLC Input Power Stage |
Use Scenario: 24 V input to 3.3 V/2 A buck-derived supply in under-dash BCM with extended temperature requirements. IC Role / Device Role / Timing Role: Input rectifier handling battery transients and load dump events before LDO or buck regulator. Use Value: 175°C TJMAX and 50 A IFSM withstand 12 V system load dump pulses without degradation. | Use Scenario: 24 V industrial control power supply feeding multiple 24 V logic rails in factory automation cabinet. IC Role / Device Role / Timing Role: Bulk rectifier in bridge-configured front-end for redundant 24 V DC input. Use Value: SOD-128 footprint allows dual-device parallel placement on compact 25 mm² area, meeting IEC 61000-4-5 surge immunity layout rules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R04 | Same 2 A / 400 V rating; 125 ns trr; TO-277 package (larger footprint, higher RθJA = 90 °C/W) | Requires PCB redesign due to different outline and thermal pad layout; better for higher ambient temp with heatsink. | Select if thermal margin >25°C required at 2 A continuous and board space permits TO-277. |
| ES2D | 2 A / 200 V rating; 35 ns trr; same SOD-128 package; lower VF (0.93 V @ 2 A) | Not suitable for 400 V bus designs; limited to ≤200 V output stages like 12 V/24 V secondary rails. | Select only where VRRM headroom <200 V is acceptable and ultra-fast recovery is prioritized over voltage rating. |
Compared with STTH2R04 and ES2D, the RS2GFS uniquely balances 400 V rating, SOD-128 footprint, and 150 ns recovery in a single industrial-grade package-making it optimal for space-constrained 24–48 V output SMPS where voltage margin and thermal density are both critical.
Availability
RS2GFS is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and general-purpose power rectification requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for RS2GFS includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global power and protection markets since 1979.
The RS2GFS belongs to TSC's RS2xFS fast recovery rectifier family, engineered specifically for high-efficiency, high-density AC-DC and isolated DC-DC power supplies operating at 100–500 kHz switching frequencies.
FAQ
What is the maximum repetitive peak reverse voltage rating for RS2GFS?
The RS2GFS has a maximum repetitive peak reverse voltage (VRRM) of 400 V, verified per JEDEC test conditions and confirmed in the Absolute Maximum Ratings table of the official TSC datasheet (Version C2304). This rating ensures reliable blocking capability in 48 V and 100 V DC bus applications, including flyback and forward converter secondary sides. Exceeding 400 V risks avalanche breakdown and permanent damage to the RS2GFS junction.
Does RS2GFS support lead-free reflow soldering processes?
Yes, RS2GFS supports lead-free reflow soldering per J-STD-020. Its matte tin-plated leads meet J-STD-002 solderability requirements, and its moisture sensitivity level is rated Class 1-meaning unlimited floor life and no pre-bake required before standard Pb-free reflow profiles (peak 260°C). This eliminates process complexity and ensures robust intermetallic formation during assembly of the RS2GFS.
What is the typical forward voltage of RS2GFS at full rated current and elevated temperature?
At 2 A forward current and 125°C junction temperature, the RS2GFS exhibits a typical forward voltage (VF) of 0.88 V, as specified in the Electrical Specifications table. This reduced VF versus room temperature (1.01 V) reflects positive temperature coefficient behavior, improving thermal stability in high-power density designs using the RS2GFS.
Can RS2GFS be used in parallel configurations for higher current handling?
Parallel use of RS2GFS devices is not recommended without external balancing-its forward voltage tolerance (±0.05 V typ.) and thermal coupling limitations may cause current imbalance. For >2 A applications, select a higher-current rectifier (e.g., RS3GFS) or verify matched VF binning and symmetric PCB thermal layout before deploying multiple RS2GFS units in parallel.
What is the reverse recovery time specification for RS2GFS and how is it measured?
The RS2GFS reverse recovery time (trr) is specified as ≤150 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC standard test conditions. This value reflects the time required for minority carriers to clear after forward conduction, directly impacting switching loss and EMI in high-frequency converters using the RS2GFS.
RS2GFS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-128
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 400 V
- Capacitance @ Vr, F:
- 11pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2GFS FAQ
1.How can I place an order for RS2GFS through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2GFS on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for RS2GFS reliable?
The price and inventory of RS2GFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2GFS is usually 5 days.
3.What payment methods are accepted for RS2GFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2GFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2GFS?
RS2GFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2GFS order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for RS2GFS?
For technical support, including RS2GFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2GFS requirements.
6.How does Aetrix verify that RS2GFS is sourced from the original manufacturer or authorized distributors?
All RS2GFS products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that RS2GFS meets industry standards.
7.What is the process for return or replacement of RS2GFS?
All RS2GFS units undergo pre-shipment inspection (PSI). If there is an issue with RS2GFS, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The RS2GFS part is unused and in its original packaging.
Return procedure for RS2GFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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